This is pretty awesome. The game looks great, and I like the action command sort of thing they've got going with throwing the Pokeball. Don't realy care about co-op or connecting with GO, but I'll enjoy Kanto again. I wonder if it'll include all the stuff added from FRLG, or maybe have entirely new areas. I wonder what the story is, because there's still Team Rocket and Mewtwo and all that, but the protagonists aren't Red and Leaf.
A shame this isn't the full on new Gen VIII stuff, but it's a great way to show off how I'm assuming it'll look and play. At least there'll be at least one new Pokemon.
EDIT: Apparently it's a spin-off, that's what people are saying, I didn't even think about that. Feels closer to a remake to me.
We already know it's not a remake, it does not include wild Pokémon battles outside of catching things and according to Serebii, Red and Blue are set to make an appearance in the S/M designs. We can already see that this is a heavily simplified game from previous entries and if it was outright labelled a remake the backlash would be so immense that it would bomb horribly on release.
Basically "Pokémon Go Sit on your couch".